How do I add a new app to the Face ID & Passcode for facial recognition on an iPhone 13 pro max

I had my bank with facial recognition and my iPhone had to be reset because I lost my voicemails and my phone wouldn’t ring. If someone called they would immediately go to voicemail.

I contacted my cellular company and they walked me though the procedure to gain access to everything.

in the meantime I had lost all of my passwords that I had to restore. With my bank I can’t access the account with the facial recognition. I was wondering how do I include it in the Face ID & Password section that states other apps that use facial recognition.

Thank you very much. That did the trick.

Have a great and blessed evening.